Definition of Si

1. Noun. A tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors.




2. Noun. A complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela). "Today the United States is the only country in the world not totally committed to the Systeme International d'Unites"

3. Noun. The syllable naming the seventh (subtonic) note of any musical scale in solmization.
Exact synonyms: Te, Ti
Generic synonyms: Solfa Syllable

Definition of Si

1. Initialism. The abbreviation for ''Système International d'Unités'' or the International System of Units, commonly known as the metric system. ¹

2. Initialism. Smithsonian Institution ¹

3. Initialism. (electronics) Signal integrity ¹

4. Initialism. (technology) Systems integration ¹

5. Initialism. self-injury ¹

6. Proper noun. A diminutive of the male given name '''Simon'''. ¹

7. Noun. (music) A syllable used in solfège to represent the seventh note of a major scale. ¹

¹ Source: wiktionary.com

Definition of Si

1. ti [n -S] - See also: ti

Medical Definition of Si

1. International System of Units (Systeme International d'Unites). Symbol for silicon. (05 Mar 2000)

Si Pictures

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Lexicographical Neighbors of Si

SH
SH2-containing inositol phosphatase
SH3 domain-containing proline-rich kinase
SHF
SHH
SHHH
SHID
SHRA
SHRIMP
SHTML
SH domains
SH protein-tyrosine phosphatase
SI
SIADH
SIDD
SIDS
SIF
SIG
SIGINT
SIGMET
SIGs
SIH
SIL
SILENT
SILS
SIM
SIMAP

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